Very, very angry, and probably about to strangle you. It refers to Star Trek's character Mr. Spock, who can be a very pissed off alien if somebody dares mention his human mother, and therefore provokes an emotional reaction in him. It is not, under any circumstances, an advisable move.
First used by BrittanyDiamond in her Star Trek TOS commentary.
If someone has to ask about Landrew one more FREAKIN’ time and NOT get an answer, I swear I will go CRAZY like a SPOCK who’s just had his MOTHER insulted.
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.